中文介绍： BK8321 数位式温度／湿度／湿球／露点量测计是一款功能强大的环境参数测量工具。它采用高精密 NTC 温度传感器和快速反应式湿度传感器，能够同时测量温度、湿度、湿球温度以及露点温度。其温度测量范围为 -20℃至 60℃（-4℉至 140℉），湿度测量范围为 0%至 100% RH。该设备具备最大值锁定功能，可帮助用户记录测量过程中的峰值。背光显示功能则确保在光线较暗的环境中也能清晰读取数据。此外，它还支持温度和湿度双显示，方便用户同时查看两种参数。其设计便于携带，单手即可操作，适用于温室、食品流通业、HAVC 安装及维修、美术馆、办公室、百货公司、实验室、医院及诊所、环境研究、印刷厂、气候监测以及商场等多种场所。

English Introduction: The BK8321 Digital Temperature/Humidity/Wet Bulb/Dew Point Meter is a versatile tool for measuring environmental parameters. It features a high-precision NTC temperature sensor and a fast-reacting humidity sensor, capable of measuring temperature, humidity, wet bulb temperature, and dew point simultaneously. The temperature measurement range is from -20℃ to 60℃ (-4℉ to 140℉), while the humidity measurement range is from 0% to 100% RH. This device is equipped with a maximum value lock function to record peak values during the measurement process. The backlight display ensures clear readings even in low-light conditions. Moreover, it supports dual display of temperature and humidity, allowing users to view both parameters at the same time. Designed for portability, it can be operated with one hand. It is suitable for a wide range of applications, including greenhouses, food distribution industries, HVAC installation and maintenance, art galleries, offices, department stores, laboratories, hospitals and clinics, environmental research, printing factories, climate monitoring, and shopping malls.